1. PET material because of its exceptional performance, are generally used two-step molding process, by the preform injection molding machine to produce a 24-hour After cooling, the internal molecular structure of their re-arranged in an orderly manner, and blowing for the next step to create good conditions, so that more excellent blowing performance products. Such as the famous Coca-Cola Company is currently using this technology.

 PP/PE material→load material→dry→heat material →injection→cooling molding →preforms→caps .

2. Cap on in the injection molding machine is completely automated production.

Functions of injection moulding machines :

  1) LCD computer control with big display screen                                  2) Hydraulic double proportional valve

  3) Hard chrome plated high tensile strength steel tie bars                     4) Generous space for fitting large moulds

  5) Large opening stroke                                                                     6) Two position transducers to control Clamping and Injection 

  7) Four stages of injecting, independent velocity and pressure control    8) Hydraulic mould height adjustment device 

  9) Screw cold-start prevention device                                                  10) Melt decompression control 

 11) Screw back pressure control                                                         12) Multiple hydraulic ejection 

 13) Differential high speed clamping                                                     14) Centralized lubrication system  

 15) Low pressure mould protection device                                             16) Mechanical safety interlock  

 17) Double electrical safety interlock                                                    18) Oil return filter  

 19) Oil tank with inner stainless steel container

  Technical Data of injection moulding machines : 

             Photo show of injection moulding machines :

 A. Plastic cap sample photos

   used plastic injection moulding machines